Hi G. Ashok,
The first think to do is to get log files which contains the information, for
instance do you have any logging server or maybe you can get output via CLI
(Command Line Interface).
In the first cause all you need to do is do some filtering and give your
information to the mrtg service,
On the second scenario you will have to probably remotely gather this
information using ssh to execute remote commands or maybe rsh. Than all is
simple I will attach a file which contains few mrtg configuration scenarios
with the some scripts which are realy easy to read.
If you need more help plz send some details on what kind of information do you
wana graph and how do you obtain them, and I will try to help you with your
script.
Keep in mind I don't know how windows mrtg works so I am speaking only for
linux servers that serves mrtg.
By the way I found these scripts on the net and I am not sure where did I find
them but they gave me really great help creating my script and mrtg.cfg, so
this is not my work some1 else deserves the thanking.
Fehmi
Date: Sat, 24 Apr 2010 15:58:37 +0530
Subject: Re: [mrtg] How to monitor non SNMP Device using MRTG
From: [email protected]
To: [email protected]
CC: [email protected]
Thank you guys for giving such a valuable information saying that you have
implemented MRTG for non SNMP devices.But someone says, to use smokeping, write
scripts which have to return four values.
First of all I I think I don't want to switch to some other tools like
smokeping as I know about MRTG. So, if you guys tried this, could you please
post some practical scripts( might be complex ) so that I can implement for my
non SNMP devices and then I can go for some other tools like smokeping for some
enhancements.
Kind Regards,G Ashok Kumar,Softential.On Sat, Apr 24, 2010 at 1:24 PM, Fehmi
Dumani <[email protected]> wrote:
You can check this page http://mrtg.meulie.net/doc/mrtg-reference.en.html it
helped me set it up for my own use.
Check the part
External Monitoring Scripts
If you want to monitor something which does not provide
data via snmp you can use some external program to do
the data gathering.
The external command must return 4 lines of output:
Line 1
current state of the first variable,
normally 'incoming bytes
count'
Line 2
current state of the second variable,
normally 'outgoing bytes
count'
Line 3
string (in any human readable format),
telling the uptime of the
target.
Line 4
string, telling the name of the target.
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WorkDir: /usr/nekoware/apache2/htdocs/_mrtg
Interval: 5
Title[load_avg]: Load average * 100
PageTop[load_avg]: <H1>Load average * 100</H1>
Options[load_avg]: nobanner,gauge,noinfo,nopercent
Target[load_avg]: `/usr/nekoware/etc/mrtg/load_avg.sh`
MaxBytes[load_avg]: 100
YLegend[load_avg]: LoadAvg * 100
Unscaled[load_avg]: ymwd
LegendI[load_avg]:
LegendO[load_avg]:
Suppress[load_avg]: y
Title[disk_usage]: Disk usage (GB)
PageTop[disk_usage]: <H1>Disk usage (GB)</H1>
Options[disk_usage]: nobanner,gauge,noinfo,nopercent
Target[disk_usage]: `/usr/nekoware/etc/mrtg/disk.sh`
kMG[disk_usage]: G
MaxBytes[disk_usage]: 35410400
YLegend[disk_usage]: Disk total/used
Unscaled[disk_usage]: ymwd
LegendI[disk_usage]:
LegendO[disk_usage]:
Suppress[disk_usage]: y
Title[memory_usage]: Memory usage (MB)
PageTop[memory_usage]: <H1>Memory usage (MB)</H1>
Options[memory_usage]: nobanner,gauge,noinfo,nopercent
Target[memory_usage]: `/usr/nekoware/etc/mrtg/mem.sh`
kMG[memory_usage]: M
MaxBytes[memory_usage]: 256
AbsMax[memory_usage]: 256
YLegend[memory_usage]: Mem total/free
Unscaled[memory_usage]: ymwd
LegendI[memory_usage]:
LegendO[memory_usage]:
Suppress[memory_usage]: y
/usr/nekoware/etc/mrtg/load_avg.sh
Load Average multiplied by 100. Fetched from uptime.
#!/bin/sh
DATA=`uptime`
FIRST=`echo $DATA | cut -f4 -d":" | cut -f1 -d","`
SECOND=`echo $DATA | cut -f4 -d":" | cut -f2 -d","`
VAL1=`echo "$FIRST*100" | bc | cut -f1 -d"."`
VAL2=`echo "$SECOND*100" | bc | cut -f1 -d"."`
echo $VAL1
echo $VAL2
echo 0
echo 0
/usr/nekoware/etc/mrtg/disk.sh
Disk usage. Fetched from df.
#!/bin/sh
DATA=`df -k /dev/root | tail -1`
VAL1=`echo $DATA | cut -f3 -d" "`
VAL2=`echo $DATA | cut -f4 -d" "`
echo $VAL1
echo $VAL2
echo 0
echo 0
/usr/nekoware/etc/mrtg/mem.sh
Memory usage. Fetched from top.
#!/bin/sh
DATA=`top -b | grep Memory`
TOTAL=`echo $DATA | cut -f2 -d" " | cut -f1 -d"M"`
FREE=`echo $DATA | cut -f6 -d" " | cut -f1 -d"M"`
echo $TOTAL
echo $FREE
echo 0
echo 0
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